Details Form factor PCIe 4.0 NVMe Interface M.2 2280 Capabilities 1TB, 2TB, 4TB, and 2 500GB Phison E18 NAND 3D TLC Controller: Sequential read/write 7,300 – 3,900 MB/s for 1 500 GB 7,300/6,000 MB/s for 1TB 7,000/7,000 MB/s – 2TB 4,300/7,000 MB/s – 4TB 4K random read/write up to 450,000/900,000 IOPS on 1 500GB Up to 900,000/1,000,000 IOPS using 1TB Up to 1,000,000/1,000,000 IOPS on 2TB Up to 1,000,000/1,000,000 IOPS in 4TB Total Written Bytes (TBW) 3 500 GB – 500 TBW 1.0PBW – 1TB 4TB-4.0PBW and 2TB-2.0PBW Power usage 500GB: 5mW idle, 0.34W average, 2.7W maximum read, 4.1W maximum write 5mW idle, 0.33W average, 2.8W (MAX) read, and 6.3W (MAX) for 1TB Compose 2TB: 2.8W (MAX) read, 9.9W (MAX) write, 5mW idle, and 0.36W average 4TB: 2.7W (MAX) read, 0.36W average, 5mW idle, and 10.2W (MAX) Compose Cold storage (-40°C to 85°C) The operating temperature range is 0°C to 70°C. Measurements Measuring 80 x 22 mm